Bacterial filtration efficiency detector BFE detector phone

Description :

　　The testing principle of the bacterial filtration efficiency tester is to simulate the actual use state of the mask sample and install it on the head mold rack. The mask passes over the igniter with a constant flame height at a certain linear velocity along with the head mold, observes the combustion of the mask, records the duration of continuous combustion and smoldering, and evaluates whether the mask is qualified.

　　The main purpose of the bacterial filtration efficiency tester is to use a dual gas path simultaneous comparative sampling method to improve the accuracy of sampling. It is suitable for performance testing of mask bacterial filtration efficiency by metrological verification departments, research institutes, mask production enterprises, and other related departments.

　　Instructions for Bacterial Filtration Efficiency Tester: The main performance indicators not only comply with the requirements of Appendix B Bacterial Filtration Efficiency (BFE) Test Method B.1.1.1 of the "Technical Requirements for Medical Surgical Meltblown Filter Media" YY0469-2011, but also meet the requirements of the American Society for Testing and Materials ASTMF2100, ASTMF201, and European EN14683 standards. Based on this, innovative improvements have been made, using a dual gas path simultaneous comparative sampling method to improve the accuracy of sampling. It is suitable for performance testing of bacterial filtration efficiency of meltblown filter media by metrological inspection departments, research institutes, meltblown filter media production enterprises, and other relevant departments.

　　The main configuration of the bacterial filtration efficiency detector is:

　　1. One negative pressure test chamber;

　　2. One set of test stand;

　　3. A set of peristaltic pumps;

　　4. Two sets of flow sensors;

　　5. One set of vortex mixer;

　　6. One set of aerosol generator;

　　7. Two sets of gas collection sensors;

　　8. A set of measurement and control computers;

　　9. One set of experimental software;

　　10. A set of HP color inkjet printers.

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• Bacterial filtration efficiency detector